Niagara Falls supplies about one-fifth of the drinking water in the United States. The surrounding Great Lakes contain 84 percent of North America's surface fresh water and offer approximately 21 percent of the world's surface fresh water supply. Consumption water from Niagara Falls should be avoided since it may be contaminated with parasites or germs before it is cleansed for drinking.

The first emperor of China, Qin Shi Huang, started building the Terracotta Army in 246 BC, shortly after assuming the throne at the age of 13. 
 

When you hear crickets chirping on a warm summer evening, don't be afraid to try this easy trick to determine the temperature. To determine the temperature in Celsius, simply count how many chirps there are over a period of 25 seconds, divide by 3, and then add 4 to get the frequency of a cricket's chirps.

People invented "safety coffins" after being buried alive by accident so many times.
Doctors frequently misdiagnosed sick patients, which was common in 17th century England. Alice Blunden is one such example. After she drank sedatives, a doctor mistakenly declared her dead, and she was buried alive. This terrifying ordeal occurred not once, but twice. After exhuming her and discovering she was near death, they buried her again, only for her to struggle in the casket, still alive, until she died.

Long-term lung function reduction can result from exposure to air pollution throughout childhood. Fetuses' growth has also been proven to be impacted by dirty air. The majority of the UK's regions exceed the EU's air pollution regulations. However, according to the government's present plans, it won't be safe to breathe until at least 2020, and 2025 in London.

Because the International Space Station (ISS) has Russian-language modules and operations, all astronauts who travel to the ISS must be fluent in the language. According to some astronauts, learning this new language was the most difficult aspect of their training. English-speaking astronauts can expect to spend 1,100 class hours to reach a reasonable level of fluency in Russian, according to the US State Department Foreign Service Institute. That's twice as long as it takes to learn other languages such as French, Spanish, or Dutch.

A shock wave can be produced by sound. Sharp and repetitive sounds, such as drumming, can cause shock waves when an object vibrates at a high pace. A shock wave is produced by a loud bang or clap. While a shock wave caused by a clap is harmless, a shock wave caused by an explosion is deadly since it can kill many people.

Switzerland's lakes are the greatest for swimming, and there are plenty to pick from. Lake Geneva is Switzerland's biggest lake, with 580.03 km2 (224 sq mi). It is shared with France (40.47% of which is on French territory) and is known as Lac Léman. Lake Neuchâtel, with a surface area of 218.3 km2, is the biggest lake entirely within Switzerland (84 sq mi). The majority of freshwater is so clear that rivers and lakes can be drunk from. A lake is considered dirty only if you can't see the bottom of it.

Falling in love is similar to taking a cocaine high in that both experiences affect the brain similarly and produce a similar sense of euphoria. According to research, falling in love produces several euphoria-inducing chemicals that stimulate 12 different areas of the brain at the same time.

Each person, the Swiss consume 36 litres of wine, 56.5 litres of beer, and 8.4 litres of pure alcohol per year. And here are new figures that suggest consumption has actually decreased! It is common for 20% of Swiss individuals to binge drink (4-5 drinks in one sitting) at least once a month.

The Venus flytrap was put on the endangered species list a few years ago. Their natural environment has changed as a result of increased urbanisation and agricultural development. Furthermore, the presence of poachers has diminished the plant population in the wild. Poachers take Venus flytraps from their natural environment and sell them for a profit. If you come across a Venus flytrap in the wild, do not try to remove it. Also, if you choose to purchase one, be certain that you do so from a reputable nursery or merchant. We must all work together to keep this interesting species of carnivorous plants alive.

We may not anticipate it, but what we wear directly impacts why mosquitoes won't leave us alone. These little insects are drawn to dark colors because, according to this study, black attracts more mosquitos than white. According to the same study, these flying insects are drawn to heat, which dark colors absorb more than bright hues.

Egypt is located in a strategic location between the Mediterranean Sea and the Red Sea. The Suez Canal connects the two seas allowing for ships to easily sail between Asia and Europe. Egypt has been a very strategic location for centuries.

Even those firefly larvae that are submerged in water or the underground may glow. They communicate to predators that they are not tasty using the light (they produce unpalatable, defensive steroids for protection).

World War I was a disaster on scales that most of us alive now cannot understand. What about this as an example? The total number of fatalities. France lost about 1,360,000 men during World War I. In comparison, the United States has reported around 1,350,000 military casualties in total throughout all wars since 1775.

Affirmations, another important weapon in your Law of Attraction armory, are also well-supported by psychological research. One researcher at the University of Exeter, for example, has published on constructive repeated thought. They discovered that persons who regularly convince themselves that they can achieve a goal are more likely to succeed. Affirmations have been shown to aid in trauma rehabilitation, and increase anticipatory planning, depression therapy, and physical wellbeing.

A sound wave is a mechanical wave that travels through a medium or object such as water or air. In actuality, a sound is a type of energy produced by the vibrations of matter molecules, and you hear it when the sound waves pass through a medium to your ears.

Children with flatulence can benefit from the external application of Cassia Fistula pulp around the navel area because it promotes evacuation. For gastrointestinal issues, pulp can also be used with linseed or almond oil.

Glass is reusable indefinitely without sacrificing its quality or purity.